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Chapter 4. Setting/Unsetting Overrides

To override Ceph’s default behavior, use the ceph osd set command and the behavior you wish to override. For example:

ceph osd set <flag>

Once you set the behavior, ceph health will reflect the override(s) that you have set for the cluster.

To cease overriding Ceph’s default behavior, use the ceph osd unset command and the override you wish to cease. For example:

ceph osd unset <flag>

Flag	Description
`noin`	Prevents OSDs from being treated as `in` the cluster.
`noout`	Prevents OSDs from being treated as `out` of the cluster.
`noup`	Prevents OSDs from being treated as `up` and running.
`nodown`	Prevents OSDs from being treated as `down`.
`full`	Makes a cluster appear to have reached its `full_ratio`, and thereby prevents write operations.
`pause`	Ceph will stop processing read and write operations, but will not affect OSD `in`, `out`, `up` or `down` statuses.
`nobackfill`	Ceph will prevent new backfill operations.
`norebalance`	Ceph will prevent new rebalancing operations.
`norecover`	Ceph will prevent new recovery operations.
`noscrub`	Ceph will prevent new scrubbing operations.
`nodeep-scrub`	Ceph will prevent new deep scrubbing operations.
`notieragent`	Ceph will disable the process that is looking for cold/dirty objects to flush and evict.